Frederick foster



(No Model.)

P. FOSTER.

u MEANS FOR OPENING BOTTLES GONTAINING LIQUIDS UNDER PRESSURE.

No. 411,890. Patented Oct. 1, 1889.

//////IIM oiwhthcgnphar, Washington. D. c.

UNITED STATES PATENT @EFICE.

FEEDER-101i FOSTER, OF LONDON, ENGLAND.

MEANS FOR OPENING BOTTLES CONTAINING LlQUIDS UNDER PRESSURE.

SPECIFICATION forming part of Letters Patent No. 411,890, dated October1, 1889.

Application filed December 4, 1888. Serial No. 292,684- (No model.)

To all 2.0700122, it may concern:

Be it known that I, FREDERICK FOSTER, a subject of the Queen of GreatBritain, and a resident of London, Middlesex county, England, haveinvented certain new and useful Improvements in Means for OpeningBottles Containing Liquids under Pressure, of which the following is aspecification.

The object of this invention is to provide means for facilitating theopening of ballstoppered bottles containing liquids under pressure. Forthis purpose I fit each bottle with a staple having trunnions at eachextremity, which restupon the india-rubbcr ring in the groove made inthe bottle-mouth. This staple is thus held by its trunnions in positionabove the india-rubber ring, and is capable of movement from side toside of the bottle-mouth, overlapping the ball-stopper and rotating uponits trunnions for this purpose.

A projecting piece or trigger is attached to the staple at one end, tobe operated by hand, fJr moving the staple, and is formed into a curvedpricker at its opposite end. The curved pricker bears against theballstoppcr, in contact with which it moves until it reaches theindia-rubber ring, between which and the ball-stopper its point isforced sutficiently to cause an escape of gas, whereby the ball stopperreadily falls into the bottle, which is thus safely and expeditiouslyopened.

The staple, with its trigger and pricker, is formed in one piece bystamping, and is bent into the required form, as shown in theaccompanying drawings, in which- Figure 1 shows in section the neck of abottle closed by the ball-stopper A and fitted with the trigger-openerl3. (Shown with the prieker C in position to be forced between the ballA andt-he india-rubber ring which forms the seating for the ball.) Fig.2 shows the trigger-opener B in position after the ballhas fallen fromits seating by reason of the escape of gas. Fig. 3 shows thetrigger-opener removed from the bottle.

B is the trigger by which the opener is operated.

O is the pricker, which is forced between the ball-stopper and theindia-rubber ring to cause the required leakage.

D is the staple overlapping the ball-stopper, and E E are the trunnionsby which the trigger-opener is held in position in the bottle-mouth.

Fig. 4: is a plan of Fig. 2, and in all the figures the samereference-letter indicates the same part.

Internally-stoppered bottles such as those a to which this invention isto be appliedthat is to say, those which are closed by means of a ballresting against an india-rubber ring placed in a groove formed inthebottle-neckare in general use in the United States for containingaerated waters.

Having thus described my invention, what I claim as new is As animproved article of manufacture, the trigger-open er hereinbeforedescribed, and particularly illustrated by Fig. 3 of the accompanyingdrawings, having a curved part D to overlap the stopper and trunnions EE at its extremities to form the hinge required to 0perate the pricker Oby means of the handle B, as and for the purposes substantially asdescribed.

In testimony that I claim the foregoing as my invention I have signed myname, in pres. ence of two witnesses, this 13th day of November, 1888.

t FREDK. FOSTER. Vitnesses:

H. MoY THOMAS, .TAs. GLIDDON.

